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1. 发明授权

US09771928B2 High pressure pump 有权
公开(公告)号：US09771928B2
公开(公告)日：2017-09-26
申请号：US14284823
申请日：2014-05-22
申请人： DENSO CORPORATION
发明人： Takehiko Kato , Shinichiro Koshimoto , Osamu Hishinuma , Yutaka Miyamoto
IPC分类号： F04B53/10 , F16K1/32 , F02M59/46 , F04B1/04 , F02M63/00
CPC分类号： F04B53/1085 , F02M59/025 , F02M59/466 , F02M63/0075 , F02M63/0077 , F02M63/0078 , F04B1/0452 , F04B19/04 , F04B19/22 , F04B53/1087 , F04B53/14 , F04B53/16 , F16K1/32
摘要： A valve seat member which partitions between a supply passage and a pressurizing chamber, includes an inner flow path, which communicates between the supply passage and the pressurizing chamber, and an outer flow path, which is placed on a radially outer side of the inner flow path. An inner valve is seatable against inner valve seat formed in an opening of the inner flow path. An outer valve is contactable with an end surface of the inner valve, which is opposite from the inner valve seat. The outer valve is seatable against an outer valve seat, which is formed in an opening of the outer flow path.

2. 发明授权

US09534589B2 High-pressure pump 有权
标题翻译：高压泵
公开(公告)号：US09534589B2
公开(公告)日：2017-01-03
申请号：US13933450
申请日：2013-07-02
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Shinobu Oikawa , Hirokuni Tomita , Takehiko Kato
IPC分类号： F04B49/03 , F04B7/00 , F04B7/02 , F16K31/06 , F04B1/04 , F04B53/10 , F04B19/22
CPC分类号： F04B7/0076 , F04B1/0452 , F04B7/02 , F04B19/22 , F04B53/1082 , F16K31/0693
摘要： Between a movable core chamber and a fuel supply passage, a needle guide slidably supports a needle fixed to a movable core. The needle guide has a communication hole which fluidly connects the movable core chamber and the fuel supply passage. An opening sectional area of the communication hole is defined in such a manner that a fuel discharged amount decreases as an energization start time of a coil is delayed. In a suction stroke, it is restricted that the movable core and the needle bounce toward the fixed core after the needle biases a suction valve toward a stopper by means of a biasing force of a second spring. A relationship between the energization start time of the coil and the fuel discharged amount is properly maintained, so that the fuel discharged amount of the high-pressure pump can be controlled correctly.
摘要翻译：在可动核心室和燃料供给通道之间，针引导件可滑动地支撑固定到可动芯的针。针引导件具有将可动核心室和燃料供给通路流体连接的连通孔。连通孔的开口截面积被限定为随着线圈的通电开始时间延迟，燃料排出量减少。在吸入行程中，限制了针在针上通过第二弹簧的作用力朝向止动件偏压吸入阀之后，可动芯和针向固定芯反弹。适当地保持线圈的通电开始时间与燃料排出量之间的关系，从而能够正确地控制高压泵的燃料排出量。

3. 发明授权

US09404481B2 High-pressure pump 有权
标题翻译：高压泵
公开(公告)号：US09404481B2
公开(公告)日：2016-08-02
申请号：US14943108
申请日：2015-11-17
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Shinobu Oikawa , Hirokuni Tomita , Takehiko Kato
IPC分类号： F04B49/22 , F04B7/00 , F04B7/02 , F16K31/06 , F04B1/04 , F04B53/10 , F04B19/22
CPC分类号： F04B7/0076 , F04B1/0452 , F04B7/02 , F04B19/22 , F04B53/1082 , F16K31/0693
摘要： Between a movable core chamber and a fuel supply passage, a needle guide slidably supports a needle fixed to a movable core. The needle guide has a communication hole which fluidly connects the movable core chamber and the fuel supply passage. An opening sectional area of the communication hole is defined in such a manner that a fuel discharged amount decreases as an energization start time of a coil is delayed. In a suction stroke, it is restricted that the movable core and the needle bounce toward the fixed core after the needle biases a suction valve toward a stopper by means of a biasing force of a second spring. A relationship between the energization start time of the coil and the fuel discharged amount is properly maintained, so that the fuel discharged amount of the high-pressure pump can be controlled correctly.
摘要翻译：在可动核心室和燃料供给通道之间，针引导件可滑动地支撑固定到可动芯的针。针引导件具有将可动核心室和燃料供给通路流体连接的连通孔。连通孔的开口截面积被限定为随着线圈的通电开始时间延迟，燃料排出量减少。在吸入行程中，限制了针在针上通过第二弹簧的作用力朝向止动件偏压吸入阀之后，可动芯和针向固定芯反弹。适当地保持线圈的通电开始时间与燃料排出量之间的关系，从而能够正确地控制高压泵的燃料排出量。

4. 发明申请

US20130306033A1 RELIEF VALVE FOR HIGH-PRESSURE FUEL PUMP 审中-公开
标题翻译：高压燃油泵的减压阀
公开(公告)号：US20130306033A1
公开(公告)日：2013-11-21
申请号：US13896867
申请日：2013-05-17
申请人： NIPPON SOKEN, INC. , DENSO CORPORATION
发明人： Takehiko Kato , Yutaka Miyamoto , Toyoji Nishiwaki , Shigeto Tsuge , Tatsumi Oguri , Koichi Ohata
IPC分类号： F02M63/00 , F16K15/04
CPC分类号： F02M63/005 , F02M63/0225 , F16K15/044 , F16K17/0406 , Y10T137/7929
摘要： A relief valve includes a valving element, a movable holder, a housing having a guide hole and a valve seat, and a resilient member. The valving element is lifted from its seated state, in which the valving element is engaged with the valve seat, toward a pressurizing chamber in a lift period. The lift period includes a lift first period and a lift second period. An amount of the lift of the valving element reaches a set distance in the lift first period. The lift second period is after the amount of the lift of the valving element has reached the set distance. The movable holder slides inside the guide hole both in the lift first period and in the lift second period. A minimum clearance area between the movable holder and the guide hole is larger in the lift second period than in the lift first period.
摘要翻译：安全阀包括阀元件，可动保持器，具有引导孔和阀座的壳体和弹性元件。阀元件在其提升期间朝着加压室从其就座状态升高，其中阀元件与阀座接合。升降期包括电梯第一期和电梯第二期。在提升第一期间，阀元件的升程量达到设定的距离。电梯第二期是在阀元件的升程量达到设定距离之后。可移动保持架在升降机第一时段和升力第二时段内在引导孔内滑动。在升降机第二期间，可移动保持器与引导孔之间的最小间隙面积大于升降机第一期间。

5. 发明授权

US09803635B2 High pressure pump 有权
公开(公告)号：US09803635B2
公开(公告)日：2017-10-31
申请号：US15386177
申请日：2016-12-21
申请人： DENSO CORPORATION
发明人： Takehiko Kato , Shinichiro Koshimoto , Osamu Hishinuma , Yutaka Miyamoto
IPC分类号： F04B53/10 , F16K1/32 , F02M59/46 , F04B19/22 , F04B19/04 , F02M59/02 , F04B53/14 , F04B53/16
CPC分类号： F04B53/1085 , F02M59/025 , F02M59/466 , F02M63/0075 , F02M63/0077 , F02M63/0078 , F04B1/0452 , F04B19/04 , F04B19/22 , F04B53/1087 , F04B53/14 , F04B53/16 , F16K1/32
摘要： A valve seat member, which partitions between a supply passage and a pressurizing chamber, includes an inner flow path, which communicates between the supply passage and the pressurizing chamber, and an outer flow path, which is placed on a radially outer side of the inner flow path. An inner valve is seatable against an inner valve seat formed in an opening of the inner flow path. An outer valve is contactable with an end surface of the inner valve, which is opposite from the inner valve seat. The outer valve is seatable against an outer valve seat, which is formed in an opening of the outer flow path.

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